131030331320 has 64 divisors (see below), whose sum is σ = 337094784000. Its totient is φ = 44903399040.

The previous prime is 131030331319. The next prime is 131030331343. The reversal of 131030331320 is 23133030131.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a junction number, because it is equal to n+sod(n) for n = 131030331292 and 131030331301.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 486881 + ... + 706479.

It is an arithmetic number, because the mean of its divisors is an integer number (5267106000).

Almost surely, 2^131030331320 is an apocalyptic number.

131030331320 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

131030331320 is an abundant number, since it is smaller than the sum of its proper divisors (206064452680).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

131030331320 is a wasteful number, since it uses less digits than its factorization.

131030331320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 221748 (or 221744 counting only the distinct ones).

The product of its (nonzero) digits is 486, while the sum is 20.

Adding to 131030331320 its reverse (23133030131), we get a palindrome (154163361451).

The spelling of 131030331320 in words is "one hundred thirty-one billion, thirty million, three hundred thirty-one thousand, three hundred twenty".